What Would Earth Be Like If Humans Disappeared?

We humans tend to think of Earth as "ours." But the planet was here long before we came on the scene, and it will probably be here long after we leave. In fact, our existence is a mere blip on Earth's time scale: the Earth is 4.5 billion years old, and modern humans have only been on it for about 200,000 years. If we disappeared, it wouldn't take long for evidence of our existence to disappear too. Humanity's wood structures would be gone within a century, and all of our cars, bridges, and other metal structures would rust to nothing a while later. It's humbling to think how quickly the whole of human creation could disappear without us around.

Earth in 100 Million Years

If space travelers encountered Earth millions of years in the future, what would they see?